This is a stunning pair of two tone Japanese akoya saltwater cultured pearl screwback earrings.

The pearls are 6.25-8.00mm round. Two are a white color with bright pink overtones and two are black with greenish purple overtones. Total drop ins just under 1 1/4 inch. Stamped "SILVER" which is an older mark for sterling. 

All pearls are truly vintage and have only been lightly cleaned.